Comparison

ReadableCalc vs 高機能な電卓

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ReadableCalc

Features
Read full description

ReadableCalc is a calculator app that displays large numbers—like 3 trillion 500 billion—in readable units. It’s designed to make extremely large numbers more intuitive at a glance. Main Features • Supports four basic operations (+, −, ×, ÷) • Displays results in English numeric units for easy readability • Handles decimals and negative numbers • DEL button for deleting one character at a time (Long press to clear the entire expression) • Long press on expressions or results to copy • Tap on the “readable” result to toggle display between: • Short scale / Long scale / Kanji numerals Additional features in landscape mode: • “00”, “000”, and “0000” buttons for quickly adding zeros • “x²” and “x³” buttons for quick exponentiation Note: • Numbers exceeding 200 digits may be rounded due to calculation and display limitations. Please be cautious if you need high precision. • Short scale and Long scale support numbers up to 10^198. • Kanji numeral display supports up to 10^72. Larger numbers are shown in Arabic numerals instead.

About

高機能な電卓

Features
Read full description

高機能な電卓は、日常の四則演算から高度な関数計算まで、1つの画面で扱える電卓アプリです。シンプルな「基本電卓」と多機能な「関数電卓」を用途に応じて切り替えられます。 入力中の式と計算結果をリアルタイムで確認でき、確定した計算はテープ形式で画面に残ります。確定後は、数字を押すと新しい計算を開始し、演算子を押すと直前の結果から続けて計算できます。 主な機能は次のとおりです。 - 四則演算、百分率、符号反転 - 三角関数、対数、累乗、平方根、階乗 - 順列・組合せ、度分秒変換、座標変換 - 10進・16進・8進・2進の切り替え - DEG・RAD・GRADの角度単位 - AUTO・FIX・SCI・ENGの表示形式 - Shift/Altによる追加機能 - Ansとメモリ機能 - セッション単位の計算履歴 履歴・設定・メモリ・作業中の式は端末内に保存されるため、アプリを終了しても続きから再開できます。ACは現在の計算を消して新しいセッションを始めますが、保存済みの履歴は削除しません。

Screenshots

ReadableCalc3 screens
高機能な電卓3 screens

Verdict

The call

The clearest difference is device support: ReadableCalc at 3 against 高機能な電卓's 1. ReadableCalc also leads on iOS requirement (12.0 vs 26.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ReadableCalc ships an update weekly, 高機能な電卓 every 2 weeks. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.

Scorecard2 real differences · 4 level
ReadableCalc versus 高機能な電卓: the parameters behind the verdict, then further details
ParameterReadableCalc高機能な電卓
PriceFreeFree
Update frequencyWeekly — betterEvery 2 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better26.0
Further details — not scored
Size28 MB3 MB
Age rating4+4+
DeveloperYONAGARE LABKoki Komatsu

In-app purchases

None

ReadableCalc

No in-app purchases

None

高機能な電卓

No in-app purchases

Questions

Is ReadableCalc free?
ReadableCalc is free to download, with no in-app purchases.
Is 高機能な電卓 free?
高機能な電卓 is free to download, with no in-app purchases.
Do ReadableCalc or 高機能な電卓 have ads?
Neither ReadableCalc nor 高機能な電卓 shows ads.
Which is updated more often, ReadableCalc or 高機能な電卓?
ReadableCalc ships an update weekly, and 高機能な電卓 every 2 weeks. Most recently, ReadableCalc was updated on October 7, 2026 and 高機能な電卓 on October 13, 2026.

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